Which translation is more probable for this conversation?

A high school boy talking to the phone:

"ええ"

"今ちょっと 出てますけど"

"はい"

"泊まっていく そうです"

"はい"

"伝えますっ"

Scene ends.

To me it seems (context-wise) that he’s covering for his childhood friend (in the story) who didn’t come back home yet, saying that he’s going to stay the night at his place.

But a translation that has been made for it was like this:

"Yeah…"

"I’m gonna be out for a while…"

"Yeah."

"Looks like I’ll be spending the night."

"Yeah"

"I’ll let her… know!"

Scene ends

In this translation, it seem that he’s talking to his parent telling them he’s gonna spend the night out.

After the scene, there’s nothing that indicates which one is correct.

I hope to get an opinion of someone more knowledgeable than me to see which translation is/seems more probable.

Thank you.